Good overview of some of the features in VS 2008 and some information on installing.
http://weblogs.asp.net/scottgu/archive/2007/11/19/visual-studio-2008-and-net-3-5-released.aspx
Short-blog describing the steps to removing the VS 2008 Beta. Read!
http://weblogs.asp.net/scottgu/archive/2007/11/20/steps-to-uninstall-vs-2008-beta2-before-installing-the-vs-2008-final-release.aspx
VS 2008 Ajax and web deployment project links.
http://weblogs.asp.net/scottgu/archive/2007/12/01/asp-net-ajax-control-toolkit-and-web-deployment-project-releases-for-vs-2008.aspx